( 3?9 ) 



rnfescent bnfT marlciiig-s being reduced to minnte dots .and some obsolete wav}' lines. 

 Natterer's female I'rom Mattogrosso is rather large (wing 150; tail 105 mm.), but; 

 in coloration it does not differ from Venezuelan and Rio Negro e.^amples. 



289. Podager nacunda (Vieill.). 



Caprimulgus nacunda VieiUot, Nunw Diet. x. p. '240 (1817. — ex Azara : Paraguay). 

 Podager nacunda Pelzein, I.e. p. 15 (Borba). 



No. 887. ¥ ad., Calama, IS. iv. 1908. " Iris dark brown, feet grey, bill 

 greyish black." 



290. Lurocalis semitorquatus uattereri (Temm.). 



[Caprinudgim semitorquatus Gmelin, Sijst. Nat. 1. ii. p. 10,'il (17S9. — ex D'Aubenton, PI. enl. 734 : 



Cayenne).] 

 C. naltereri Temmiuck, P/. r»/. livr. 18. pi. 107 (1822. — " Bre'sil," coll. Natterer — we fix Ypanema, 



S. Paulo, as type locality). 



No. 81. ? al., Calama, 20. vi. lOUT. "Iris black, feet vellowisb grey, bill 

 black." 



This form is much larger than L. s. ^cmitorqu'itit.^, from North-Eastern South 

 America, but does not differ in coloration. It ranges from Para and Mamios 

 southward to S. Paulo and Parana (Curitil>a), while typical L. s. semitorquatm 

 dwells in the Guiauas, in the island of Trinidad, and on the upper Bio Negro 

 (Rio Ifanna). 



Tiie subjoined table of measurements shows the ditfereuccs in size : — 



(ji) L. s. scinitofijii(ttu.i (lira.). 



One adult, Cayenne . . . . . . . . .17 



One S ad., Chaguanas, Trinidad .... 



Two ? ? ad., Chaguanas, Trinidad .... 



One ¥ ad., Rio Icauna, Natterer coll., Vienna Mus. . 



{b) L. s. nattercri (Temui.). 



One adult male from S. Paulo (Ypanema) 



Five adult females from S. Paulo ..... 



Three adults from Rio do Janeiro ..... 



One adult from Bahia ....... 



One female from Calama, Rio Madeira .... 



One adult male from Para ...... 



One female from I'aril . . . . . _ . 



One adult female from Manaos ..... 



N.B. — The Manaos s])ocimen is fully as large as others from S. Paulo, while the 

 birds from Bahia, Calama, and Para average rather smaller. 



[291. Hydropsalis torquata (Om.). 



Cf. Hellmayr, Nov. Zooh xiv. p. ?>'}C, (Ilumaytha). 



Left bank : Humaytha (Hoffmanns). 



Natterer obtained this South Brazilian apcoics, according to Von Pelzein,* 



* Orn. Bras. i. p. II. 



